Which to use
“lachst” is a verb and “längst” is an adverb - they look or sound alike but fill different roles in a sentence.
- #28,742
- “lachst” frequency rank
- #1,520
- “längst” frequency rank
- 30262
- confusion score
Side-by-Side Comparison
| Feature | lachst | längst |
|---|---|---|
| Definition | 2. Person Singular Indikativ Präsens Aktiv des Verbs lachen | schon lange, seit langem, seit langer/längerer Zeit |
Where the eye mixes lachst and längst
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. lachst and längst follow the identical consonant-vowel pattern (CVCCCC). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses lachst with längst
These two trip readers on the page rather than in the ear: lachst is [laxst] while längst is [lɛŋst]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (verb vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 30262, derived from the frequency rank of both members and their visual similarity.
lachst is recorded at frequency rank #28,742, classified as averb, pronounced [laxst]. längst is at rank #1,520, tagged as anadv, pronounced [lɛŋst].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 30262, this pair ranks #1,751,310 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of lachst vs längst
Shared letters: lst. Private to "lachst": ach. Private to "längst": gnä.
"lachst" · 6 letters · shape CVCCCC · "längst" · 6 letters · shape CVCCCC
Known mistypes of this pair
- lachst ← alchst · lacchst · lachhst · lachsst · lachstt · lachts · lacsht · lahcst
Frequently Asked Questions
Is swapping "lachst" for "längst" ever safe?
Which is more common, "lachst" or "längst"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "lachst" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "längst" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,751,310 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "lachst" and "längst" also get mixed up with nearby pairs, the highest-scored neighbour is "lachst vs lähmt". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #1,751,310 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.